[sdiy] New to list - and DSP development

[Phil Harbison]

Magnus Danielson wrote:
>> If you plan to have a long cable between the Mac and the
>> MIDI convertor, you'll want to use an RS-422 receiver at
>> the MIDI end; otherwise, just ignore the TD- half of the
>> RS-422 pair and convert the TD+ signal to current loop.
> 
> I used the propper RS-422/423 convertion chips, which was what I was indicating
> as the second interface.

Here are some schematics illustrating the standard interface
for long cables and the simplified interface for short cables.

http://mywebpages.comcast.net/alvitar/images/MacMIDI.jpg